Method of making drop-forged drop-axles.



L. c. IRISH. A METHOD OF MAKIIIQDROP FORGED DROP AXLES. APPLICATION FILED OCT- 6-- "H3.

Patented Apr 6, 1915.

LEON C. XEISH, 0F HAYNESVILLE, MAINE.

METHOD OF MARIN G DROP-FORGED DROP-AXLES.

arseees.

Specification of Letters Patent.

Patented Apr. 6, 19115..

Application filed October 6, 1913. Serial No. 793,647.

To all whom it may concern Be it lmown that LLEON G. IRISH, citizen of the United States, residing at Haynesville, in the county of Aroostook and State of Maine, have invented certain new and useful Improvements in Methodsof Making Drop-Forged Drop-Axles, of which the. fol lowing is a specification.

My invention relates to axles, and particularly to drop axles. By the usual method offorming axles of this character, the bed of the axle is welded to the stubs and the collars which are located approximately at the junction of the legs of the bed with the stubs are slipped over the stubs and shrunk on. As a consequence, an axle made in accordance with this method is weak at the point of welding and is very liable to break... Furthermore the collars on the stubs are very likely to/become loose.

The primary object of my invention is to obviate these disadvantages by making an axle of this character of a single integral drop forging, the bed, the stubs and the collars all being formed of a single piece of metal, drop forged into shape.

A further object of my invention is to so shape the forgoing that a reinforce is formed at the junction of each stub with the bed,

thus strengthening the axle at the points subjected to most strain.

My invention is illustrated in the accompanying drawings wherein:

-Figure l is an elevation of an axle constructed in accordance with my invention, showing the arms, of the axle stubs accom-' panied bya dropbed; and Fig. 2 is a section onthe line 2--2 of Fig. 1. Corresponding and like parts are referred to in the following description and. indicatedv in all the views of the accompanying drawings by the same reference characters.

in Fig. 1, in which my improved axle is Qfiopies oi the best'illustrated, 2 designates the bed having the upwardly extending legs 3, and 4 designates the stubs. The stubs, the bed and the collars 5 are all made from a single integral drop forging. This permits the junction of each stub with the corresponding upwardlyextending leg of the bed to be reinforced at 6 by thickening the metal at this point, thus strengthening the axle at the points most liable to breakage.

in forging this axle, the metal is forced to fillup the rentrant angle between each stub and the corresponding leg of the bed to thus form the reinforce 6. It will further be noted that by drop forging these axles the collars are reinforced by the thickening of the material at 7 on the outer faces of the collars.

An axle made in accordance with this invention is extremely stron is not liable to break at the junctions of he stubs with the bed, and inasmuch as the collars are integral with the stubs, the collars will not become loose.

' What I claim is The method ofmaking drop axles of the type having a stub provided with an annular collar and an angularly extending leg, which consists in drop forging the stub and leg from one integral piece of stock and simultaneously forcing the metal of the stock to fill up the reentrant angle between the stub and its leg, to thereby form a reinforcement at the junction of the stub and leg, and to form a reinforcement on the stub immediately adjacent the collar thereof.

In testimony whereof I afix my signature in presence of two witnesses.

anon crnrsn. [Ls] Witnesses:

J. D. Yosmr, Fanonmo B. Wnrcn'r.

patent may he obtained for five cents each, by addressing the Co winner of Eatento.

Washington, it. Q. 

